Which of the following correctly defines the concavity of the function `f(x) = x^5 - (25x)/(4) + 3` over the interval (-3, 3)?
A.
concave upward in (-3,0) and concave downward in (0,3)
B.
concave downward in (-3,0) and concave upward in (0,3)
C.
concave upward in (-3,3)
D.
concave downward in (-3,3)

1e+27

step-by-step explanation:

a

b

d

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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i ran through it by the other answer is wrong